/* Reusable UI components */

/* Buttons */

.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: var(--tc-space-2);
	font-family: var(--tc-font-heading);
	font-weight: 700;
	font-size: 0.95rem;
	letter-spacing: 0.01em;
	padding: var(--tc-space-3) var(--tc-space-5);
	border-radius: var(--tc-radius-pill);
	transition: transform var(--tc-transition-fast), box-shadow var(--tc-transition-fast), background var(--tc-transition-fast), color var(--tc-transition-fast);
	border: 2px solid transparent;
	white-space: nowrap;
}

.btn:hover {
	transform: translateY(-1px);
}

.btn--sm {
	padding: var(--tc-space-2) var(--tc-space-4);
	font-size: 0.85rem;
}

.btn--lg {
	padding: var(--tc-space-4) var(--tc-space-6);
	font-size: 1.05rem;
}

.btn--primary {
	background: var(--tc-gradient-brand);
	color: var(--tc-white);
	box-shadow: var(--tc-shadow-sm);
}

.btn--primary:hover,
.btn--primary:focus-visible {
	box-shadow: var(--tc-shadow-md);
	color: var(--tc-white);
}

.btn--secondary {
	background: var(--tc-purple-100);
	color: var(--tc-purple-700);
}

.btn--secondary:hover {
	background: var(--tc-purple-300);
	color: var(--tc-purple-900);
}

.btn--outline {
	background: transparent;
	border-color: var(--tc-ink-150);
	color: var(--tc-ink-700);
}

.btn--outline:hover {
	border-color: var(--tc-purple-500);
	color: var(--tc-purple-500);
}

.btn--ghost {
	background: transparent;
	color: var(--tc-ink-700);
}

.btn--ghost:hover {
	color: var(--tc-purple-500);
}

.btn--block {
	width: 100%;
}

.btn:disabled,
.btn[aria-disabled="true"] {
	opacity: 0.5;
	cursor: not-allowed;
	transform: none;
}

/* Cards */

.card {
	background: var(--tc-surface);
	border: 1px solid var(--tc-border);
	border-radius: var(--tc-radius-lg);
	overflow: hidden;
	transition: box-shadow var(--tc-transition-base), transform var(--tc-transition-base);
	display: flex;
	flex-direction: column;
	height: 100%;
}

.card:hover {
	box-shadow: var(--tc-shadow-md);
	transform: translateY(-2px);
}

.card__media {
	position: relative;
	display: block;
	aspect-ratio: 16 / 10;
	background: var(--tc-gradient-brand-soft);
	overflow: hidden;
}

.card__media img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.card__media-fallback {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 100%;
	height: 100%;
}

.card__body {
	padding: var(--tc-space-5);
	display: flex;
	flex-direction: column;
	gap: var(--tc-space-2);
	flex: 1 1 auto;
}

.card__title {
	font-size: 1.1rem;
	margin: 0;
}

.card__title a {
	color: var(--tc-ink-900);
}

.card__title a:hover {
	color: var(--tc-purple-500);
}

.card__excerpt {
	color: var(--tc-ink-500);
	font-size: 0.9rem;
	margin: 0;
	flex: 1 1 auto;
}

.card__meta {
	display: flex;
	flex-wrap: wrap;
	gap: var(--tc-space-2);
	margin-top: var(--tc-space-2);
}

.card__footer {
	margin-top: var(--tc-space-3);
	padding-top: var(--tc-space-3);
	border-top: 1px solid var(--tc-border);
	display: flex;
	align-items: center;
	justify-content: space-between;
}

.meta-pill {
	display: inline-flex;
	align-items: center;
	gap: 4px;
	font-size: 0.78rem;
	font-weight: 600;
	color: var(--tc-ink-500);
	background: var(--tc-ink-50);
	padding: 3px var(--tc-space-2);
	border-radius: var(--tc-radius-pill);
}

.badge {
	display: inline-flex;
	align-items: center;
	gap: 4px;
	font-size: 0.72rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.04em;
	padding: 3px var(--tc-space-2);
	border-radius: var(--tc-radius-pill);
}

.badge--success { background: var(--tc-success-bg); color: var(--tc-success); }
.badge--warning { background: var(--tc-warning-bg); color: var(--tc-warning); }
.badge--danger  { background: var(--tc-danger-bg); color: var(--tc-danger); }
.badge--info    { background: var(--tc-info-bg); color: var(--tc-info); }
.badge--brand   { background: var(--tc-purple-100); color: var(--tc-purple-700); }

/* Grids */

.grid {
	display: grid;
	gap: var(--tc-space-5);
	grid-template-columns: 1fr;
}

@media (min-width: 640px) {
	.grid--2 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 900px) {
	.grid--3 { grid-template-columns: repeat(3, 1fr); }
	.grid--4 { grid-template-columns: repeat(4, 1fr); }
}

/* Horizontally scrollable row (e.g. homepage "Continue Learning" when there
   are more in-progress courses than comfortably fit) — a fixed-width card
   flows normally when there's room, and scrolls once there isn't, rather
   than wrapping to further rows like .grid does. */

.scroll-row {
	display: flex;
	gap: var(--tc-space-5);
	overflow-x: auto;
	overscroll-behavior-x: contain;
	scroll-snap-type: x proximity;
	-webkit-overflow-scrolling: touch;
	padding-bottom: var(--tc-space-2);
	margin-bottom: calc(var(--tc-space-2) * -1);
}

.scroll-row::-webkit-scrollbar {
	height: 8px;
}

.scroll-row::-webkit-scrollbar-thumb {
	background: var(--tc-ink-150);
	border-radius: var(--tc-radius-pill);
}

/* .scroll-row__item is sometimes the card itself (has its own height:100%
   via .card) and sometimes a plain wrapper div around one — either way it
   needs to stretch to the row's tallest item so shorter cards don't look
   misaligned, and never shrink below its flex-basis. */
.scroll-row__item {
	scroll-snap-align: start;
	flex-shrink: 0;
	align-self: stretch;
}

.scroll-row--3up .scroll-row__item {
	flex-basis: clamp(240px, 30vw, 320px);
}

.scroll-row--4up .scroll-row__item {
	flex-basis: clamp(200px, 23vw, 270px);
}

.scroll-row__item > .card {
	height: 100%;
}

/* Progress bar */

.progress {
	display: flex;
	align-items: center;
	gap: var(--tc-space-3);
}

.progress__track {
	flex: 1 1 auto;
	height: 8px;
	border-radius: var(--tc-radius-pill);
	background: var(--tc-ink-100);
	overflow: hidden;
}

.progress__fill {
	height: 100%;
	border-radius: var(--tc-radius-pill);
	background: var(--tc-gradient-brand);
	transition: width var(--tc-transition-base);
}

.progress__value {
	flex: none;
	font-size: 0.8rem;
	font-weight: 700;
	color: var(--tc-ink-700);
	min-width: 2.5em;
	text-align: right;
}

/* Section headers */

.section-head {
	display: flex;
	align-items: flex-end;
	justify-content: space-between;
	gap: var(--tc-space-4);
	margin-bottom: var(--tc-space-5);
	flex-wrap: wrap;
}

.section-head h2 {
	margin: 0;
}

.section-head__link {
	display: inline-flex;
	align-items: center;
	gap: 4px;
	font-weight: 700;
	font-size: 0.9rem;
	color: var(--tc-purple-500);
	white-space: nowrap;
}

.section {
	padding-block: var(--tc-space-7);
}

.section--tight {
	padding-block: var(--tc-space-5);
}

.section--alt {
	background: var(--tc-surface);
	border-block: 1px solid var(--tc-border);
}

/* Forms */

.form-field {
	margin-bottom: var(--tc-space-4);
}

.form-field label {
	display: block;
	font-weight: 600;
	font-size: 0.85rem;
	color: var(--tc-ink-700);
	margin-bottom: var(--tc-space-2);
}

.form-field input[type="text"],
.form-field input[type="email"],
.form-field input[type="password"],
.form-field input[type="search"],
.form-field input[type="url"],
.form-field textarea,
.form-field select,
.search-form input[type="search"] {
	width: 100%;
	padding: var(--tc-space-3) var(--tc-space-4);
	border: 1.5px solid var(--tc-ink-150);
	border-radius: var(--tc-radius-md);
	background: var(--tc-surface);
	transition: border-color var(--tc-transition-fast), box-shadow var(--tc-transition-fast);
}

.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus,
.search-form input[type="search"]:focus {
	outline: none;
	border-color: var(--tc-purple-500);
	box-shadow: var(--tc-shadow-focus);
}

.search-form {
	display: flex;
	gap: var(--tc-space-2);
}

.search-form button {
	flex: none;
	padding: 0 var(--tc-space-4);
	background: var(--tc-purple-500);
	color: var(--tc-white);
	border-radius: var(--tc-radius-md);
}

.search-form button:hover {
	background: var(--tc-purple-700);
}

/* Widgets */

.widget {
	margin-bottom: var(--tc-space-6);
}

.widget__title {
	font-size: 1rem;
	text-transform: uppercase;
	letter-spacing: 0.05em;
	color: var(--tc-ink-500);
	margin-bottom: var(--tc-space-3);
}

/* Pagination */

.pagination {
	display: flex;
	flex-wrap: wrap;
	gap: var(--tc-space-2);
	margin-top: var(--tc-space-7);
	justify-content: center;
}

.pagination a,
.pagination span {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: 40px;
	height: 40px;
	padding-inline: var(--tc-space-2);
	border-radius: var(--tc-radius-md);
	font-weight: 600;
	color: var(--tc-ink-700);
	border: 1px solid var(--tc-border);
}

.pagination a:hover {
	border-color: var(--tc-purple-500);
	color: var(--tc-purple-500);
}

.pagination .current {
	background: var(--tc-gradient-brand);
	color: var(--tc-white);
	border-color: transparent;
}

/* Admin-only inline notice (visible only to logged-in editors of the
   current page — see e.g. page-templates/page-courses-paths.php) */

.admin-notice {
	margin-block: var(--tc-space-5);
	padding: var(--tc-space-4) var(--tc-space-5);
	background: var(--tc-warning-bg);
	border: 1px solid var(--tc-warning);
	border-radius: var(--tc-radius-md);
	color: var(--tc-ink-700);
	font-size: 0.9rem;
}

.admin-notice a {
	margin-left: var(--tc-space-2);
	font-weight: 700;
}

/* Empty state */

.empty-state {
	text-align: center;
	padding: var(--tc-space-8) var(--tc-space-4);
	color: var(--tc-ink-500);
}

.empty-state .icon {
	margin: 0 auto var(--tc-space-4);
	color: var(--tc-purple-300);
}

/* Avatar stack (e.g. cohort/participants) */

.avatar-stack {
	display: flex;
}

.avatar-stack img {
	width: 28px;
	height: 28px;
	border-radius: 50%;
	border: 2px solid var(--tc-surface);
	margin-left: -8px;
}

.avatar-stack img:first-child {
	margin-left: 0;
}